2 * Remote Controller core header
4 * Copyright (C) 2009-2010 by Mauro Carvalho Chehab <mchehab@redhat.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
19 #include <linux/input.h>
20 #include <linux/spinlock.h>
21 #include <linux/kfifo.h>
22 #include <linux/time.h>
23 #include <linux/timer.h>
25 extern int ir_core_debug;
26 #define IR_dprintk(level, fmt, arg...) if (ir_core_debug >= level) \
27 printk(KERN_DEBUG "%s: " fmt , __func__, ## arg)
29 #define IR_TYPE_UNKNOWN 0
30 #define IR_TYPE_RC5 (1 << 0) /* Philips RC5 protocol */
31 #define IR_TYPE_PD (1 << 1) /* Pulse distance encoded IR */
32 #define IR_TYPE_NEC (1 << 2)
33 #define IR_TYPE_OTHER (((u64)1) << 63l)
38 IR_START_EVENT = (1 << 2),
39 IR_STOP_EVENT = (1 << 3),
47 struct ir_scancode_table {
48 struct ir_scancode *scan;
56 unsigned long allowed_protos;
58 int (*change_protocol)(void *priv, u64 ir_type);
59 int (*open)(void *priv);
60 void (*close)(void *priv);
64 struct timespec delta; /* Time spent before event */
65 enum raw_event_type type; /* event type */
68 struct ir_raw_event_ctrl {
69 struct kfifo kfifo; /* fifo for the pulse/space events */
70 struct timespec last_event; /* when last event occurred */
71 struct timer_list timer_keyup; /* timer for key release */
75 struct device dev; /* device */
76 char *driver_name; /* Name of the driver module */
77 struct ir_scancode_table rc_tab; /* scan/key table */
78 unsigned long devno; /* device number */
79 const struct ir_dev_props *props; /* Device properties */
80 struct ir_raw_event_ctrl *raw; /* for raw pulse/space events */
82 /* key info - needed by IR keycode handlers */
83 u32 keycode; /* linux key code */
84 int keypressed; /* current state */
87 struct ir_raw_handler {
88 struct list_head list;
90 int (*decode)(struct input_dev *input_dev,
91 struct ir_raw_event *evs,
93 int (*raw_register)(struct input_dev *input_dev);
94 int (*raw_unregister)(struct input_dev *input_dev);
97 #define to_ir_input_dev(_attr) container_of(_attr, struct ir_input_dev, attr)
99 #define IR_KEYTABLE(a) \
100 ir_codes_ ## a ## _table
102 #define DECLARE_IR_KEYTABLE(a) \
103 extern struct ir_scancode_table IR_KEYTABLE(a)
105 #define DEFINE_IR_KEYTABLE(tabname, type) \
106 struct ir_scancode_table IR_KEYTABLE(tabname) = { \
108 .size = ARRAY_SIZE(tabname), \
112 EXPORT_SYMBOL_GPL(IR_KEYTABLE(tabname))
114 #define DEFINE_LEGACY_IR_KEYTABLE(tabname) \
115 DEFINE_IR_KEYTABLE(tabname, IR_TYPE_UNKNOWN)
117 /* Routines from ir-keytable.c */
119 u32 ir_g_keycode_from_table(struct input_dev *input_dev,
121 void ir_keyup(struct input_dev *dev);
122 void ir_keydown(struct input_dev *dev, int scancode);
123 int ir_input_register(struct input_dev *dev,
124 const struct ir_scancode_table *ir_codes,
125 const struct ir_dev_props *props,
126 const char *driver_name);
127 void ir_input_unregister(struct input_dev *input_dev);
129 /* Routines from ir-sysfs.c */
131 int ir_register_class(struct input_dev *input_dev);
132 void ir_unregister_class(struct input_dev *input_dev);
134 /* Routines from ir-raw-event.c */
135 int ir_raw_event_register(struct input_dev *input_dev);
136 void ir_raw_event_unregister(struct input_dev *input_dev);
137 int ir_raw_event_store(struct input_dev *input_dev, enum raw_event_type type);
138 int ir_raw_event_handle(struct input_dev *input_dev);
139 int ir_raw_handler_register(struct ir_raw_handler *ir_raw_handler);
140 void ir_raw_handler_unregister(struct ir_raw_handler *ir_raw_handler);
141 void ir_raw_init(void);
143 /* from ir-nec-decoder.c */
144 #ifdef CONFIG_IR_NEC_DECODER_MODULE
145 #define load_nec_decode() request_module("ir-nec-decoder")
147 #define load_nec_decode() 0
150 #endif /* _IR_CORE */